All channels feature -15dB pad, a 180Â° polarity reverse, and a pin-1 ground lift disconnect at the XLR for added prevention against ground-loops. Easy ID labels for each channel use removable marker pen.

Channels 1 and 2 have been outfitted with extra features and connections to simplify interfacing: dual RCA and 1/4" jacks with push-button selector; a merge function that converts the input and thruput to left and right mix to mono at the XLR; and a high-frequency roll-off filter. Channels 1 and 2 also feature 1/4" switching jacks with front channel priority.

I finally broke down and bought this unit for my 12U keyboard rack. I currently run controllers into a MacBook Pro using Reason 4 and then out a Motu 828. From the Motu, I run stereo L/R to JD-6 channels 1 and 2 and then out to the console. I also run a 1972 Fender Rhodes through effects to channels 3 and 4. I leave channels 5 and 6 open for additional boards as needed.The most noticeable gain is on the clarity and depth of the Rhodes. The tone became way sweeter than with other passive DIs I've used (Whirlwind, Countryman, etc.). The lows on the Rhodes sound amazing (there's a reason bass players like these Radial DIs) and the gritty, distorted tone from a high-velocity keystroke is well-defined in the house. My Reason patches sound fuller, more natural.I waited awhile to grab this because of its cost, but it's a great value if you consider that it's almost the same as six JDIs for the cost of four (the only thing you really give up are merge functions on channels 3 through 6).The Jensen line from Radial is simply the best line of DIs out there. Period. They might be a little costlier, but the quality of your DI is critical to good sound, and the value is inherent in that quality.